We present an analysis of an experiment to observe the condensate fraction of helium four by firing low-energy pulses of helium atoms at a finite sample of the superfluid and observing the resulting emission of helium atoms from the fluid. The analysis shows that two kinds of process will result in such emission: in a conventional process in which rotons are produced and propagate to the other side of the droplet, causing re-emission of helium atoms, the cross-section scales quadratically with the geometrical area of the incoming beam. In another process, depending on the existence of the condensate fraction, a lowest-order calculation predicts that the cross-section scales with the fourth power of the area of the incoming beam. However, a preliminary calculation of the matrix elements suggests that the first-order calculation may not be adequate for the experimental conditions envisioned. We discuss possible consequences of this and some experimental considerations regarding the feasibility of observing the effect.